Linux ssh password authentication toggle script

password-auth.sh

#!/bin/bash

# make a backup copy of the sshd_config file
cp /etc/ssh/sshd_config /etc/ssh/sshd_config.bak

# check if the first argument is "enable" or "disable"
if [ "$1" == "enable" ]; then
    # enable password authentication
    sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/; s/PasswordAuthentication no/PasswordAuthentication yes/' /etc/ssh/sshd_config
    echo "Password authentication has been enabled"
	systemctl restart ssh.service
elif [ "$1" == "disable" ]; then
    # disable password authentication
    sed -i 's/#PasswordAuthentication yes/PasswordAuthentication no/; s/PasswordAuthentication yes/PasswordAuthentication no/' /etc/ssh/sshd_config
    echo "Password authentication has been disabled"
	systemctl restart ssh.service
else
    # print an error message if the first argument is not "enable" or "disable"
    echo "Error: Invalid argument. Please specify either 'enable' or 'disable' as the first argument."
    exit 1
fi

only tested with debian and ubuntu so far